Improvement in wire-looping machines



` 4Sheets-Sheet1- O. D. & E. C. WOODBURY, & S. H. COLE.

WIRE LooPING MACHINE. No. 190,265. Patented May-1,1877.

N-FEYERS. PHOTO-LITHOGRAFHER. WAS IINGTON. D. C.

.4.- Sheets-S-heet 2. 0.1). & E. C. WOODBURY, & S. H. COLE.

. WIRE LOOPING MACHINE.

No.190,Z`65. Patented M`ay 1,1s7j7.

llllll N. PETERS. PHOTO-L THOG FH WASHINGTON D C 4Sheets-Svheet 3. 0. D. & E. C. WOODBURY & S. H. 0LEf WIRE LooPING MACHINE. No. 190,265. Patented May 1, 1`877.

N. PETERS, PHOTO-LITHGGRAPHEH. WASHINGTON, D C.

Hmm-sheen.- 0'. D. 8 E. G.`WO0DBURY, &. S. H.fCOLE.

WIRE L-ooPING MACHINE'. No, 190,265,y Patented Mayl, 1877.

dnesse;

N.PEYERS, PHOTO-LITHOGRAPHER. WASHINGTON, D C.

i UNITED STATES OSCAR YD. WOODBURY AND EDWIN PATENT QEEICE.;

C, WOODBURY, OE NEW YORK, AND

.SPENCER E. COLE, OE BROOKLYN, N. Y.; sAiD o. D. AND E. C. wOODBURY ASSIGNORS TO SAID COLE.

IMPROVEMENT lNwlRE-Lpmc MACHINES.

Specication forming part of Letters Patent No. 190,265, dated May 1, 1877 application tiled vApril 12, 1875. Y Y

To all whom Ait may concern: l 4

lBe it known that we, OSCAR D. W'OODBURY" and EDWIN G. WOODBURY, bothotNew York city, county, andjState, and SPENCER H. COLE, of Brooklyn, New York,l1ave invented a Ma! chine for Automatically Bending and Looping Wire in Loops vor Serpentine Bends, and if necessary varying the lengths of the same at intervals and at will, of which the following isa specification:

The particular kind of work done by the'- precise machine shown and described is the formation ofthe serpentine wire corset clasp or busk shown and described in Letters Pat-` ent ofthe United States No. 144,689, dated November 18, '18.73, and granted to J. P. Mc- Lean, which consists of steel wire formed into loops, the larger number of which are loops of one uniform size, but through and among which, at intervals Vwhich may be varied, longer loops are interposed intended to be used on one .side of the clasp asjhooks ai'- ter being-compressed and bent in'to'the hook form, and on thev other side as eyes to receive and retain the hooks placed at corresponding intervals. The machine is, however, capable Ot being adapted to the work of forming other articles from wire, large and small, and hav ing' regular'or variable loops-that is to say, loops of one uniform size, or loops of two sizes, and placed at regular or at variable distances from each other. l

The precise nature of the invention herein set-forth will be found stated in lthe several clauses of claimk appended to this specification. The machine is'illustrated in the four accompanying drawings, y inv which Figure 1 is a `top view, showing the bed-plate and working parts ,'Fig. 2, atop view of a part of the same, showing the position of the partsv just beforethe plunger advances; Fig. 3, the same of the same when the plunger has advanced to form the loop; Fig. 4, a side View of cam 5 and connections; Fig. 5, a side View of the thrusting-bar E, which shifts the mechanism for long and short loop making; Fig. 6, a side view of the external cam 4, which operates the parallel bar and its connections 5 Fig. 7, a side view of an inside cam, 3, "which operates the main rock-shaft and views of the two slides S and S1 with the covering part XW Fig. 1.4 is an end View, showing the ratchet and pattern wheels. Fig. 15 is a detail, showing the two- `carriers V V,`a sec'` tion of the bed-plate B, and guidelpins 'a c.

The machine is composed, first, of the mechvanism concerned in forming the uniform nshort loop or loopsyand, second,in the mechanism concerned in shifting at intervalsand at will,

so that the same mechanism which forms the short loop shall be made to form the long loop as and in the places where desired. is fed into themachine, and the looped wire is. atintervals carried out of the machine automatically and bythe same mechanism assisted by a vibrating'feed-lever.' l

f Theiirst act in the operation of the machine to forma loop after the Vwire is fully introduced consists in griping or pinching the wire at vthe forward end of so much ofthe wire as is to form the first loop.l The mechanism which gripes or pinches the wire, like the otherv devices which manipulate it, is placed in a solid plate or bed, B, and it consists of the two slides S and S1 moving in opposite directions in the same channel C. The A griping parts or combs G G1 of' these slides are so 'shaped as to receive the loops as they passalong and out ofthe machine, and engage `them upon opposite sideswithout thereby changing their form. AIt is sufficient to arrange the engaging parts 'so as to engage` two loops at a time, and theyshould include the last-formed loop.l These slides are operated in Opposite directionsin the same channel by cams Nos. 1 and 2V on the driving-shaft K1,

and after the new loop is formed, as hereinaf- I ter described, they are made tol open far enough at all times to permit the passage of the longest loops which the gri-ping-surtaces or parts Gr G1 must also be capable of receiving, as well as the shorter ones.

The cams 1 and 2 and their method of opera- I tion will be described hereafter.

The'second act consists in the backingof The wire right anglesto its own line of motion through the medium of a bell-crank lever, L1. This last-mentioned slide S3is operated by cam N o.

5 on the main shaft, to be described hereafter.

The third act consists in a slight motion given to the clamp-lever L on the clamp-slide S2 by the parallel barP operated by the outside cam No. 4. The parallel bar P takeson the roller R, soplaced on the end of the clamplever L as to travel on the parallel bar as the clamp-slide moves forward, and thus maintain a rm gripe of the wire by the clamp and slide during the forward movementv of the slide in assisting to form the loop.

The fourth act consists in the forward movement of the clamp-slide S2 coincidently and co-ordinately with the ,fifth act, which consists in a4 forward motion of the plunger-slide S4 carrying and operating the plunger P', which has meantime rested against its stop T in position opposite the center o f the measure of Wire intended to form the next loop.

The plunger-slide S4is operated by cam No.3, and moves in parallel lines with the two slides S and S1.

The plungerl P consists of a lever or arm secured at its opposite extremity or rear end to the slideS4 by a pin, so as to have a slight vibratory movement limited by ay variable.

.spring-stop, T, which, when the short loop is being made, is depressed and detains the plunger by its end, and when the long loops are to be made is elevated to give the plunger more sweep, and then detains it by a shoulder Aprovided for the purpose.

The plunger is under the control, on one side, of a small spring, and on'the other of the clamp-slide and forming-loop. As the loop, in the act of formation, swings over toward those previously formed, andthe clampslide S2 reaches its utmost forward limit of motion the plunger P is swung over, the plunger-spring Rl being overcome at the time. The plunger then lies between the slides S S1 on one side, 4and the clamp-slide S2 on the other occupying the loop.

The sixth act consists inthe forward movement of the clamp-slide S2, (for the purpose of yielding the'wire to the plunger, as described, as its first object,) for the secondary purpose of forming the two bends constituting the projecting center of the loop at the point of the plunger,` and at the same time making the A flrst bend of the adjoining rear reversed loop simultaneously with the formation and completion of the second bend of the previous or forward reversed loop, which last takes-place near to the point Where the' first two slides S and S1 gripe it, the parts in contact with the wire at both these reversed loop-bends being rounded, so as to act as formers of the wire as itis bent.

The seventh act consists in the release, by theI clamp-lever L, of its hold on the wire. This release is effected by the slight backward movement of the parallel bar P, which is delivered into the control of a spring, R5, sudsudden release and retreat of the outer slide S, speedily followed by the retreat of the inner slide Sl, thereby leaving the looped portion of the wire W t'ree, both as to short and long loops, to pass on a step bythe lateral action of the feed-lever L2, which, just at the close of the movement of the slide S4, com es in contact with a stud or pin, D, placed on Vthe slide S at its shoulder D1, (or projection,)

arranged so as to slightly tilt the feed-lever L2 and move the wire along a step, placing a new section of wire, for a new loop, in place,

for a repetition of the operations described upon it. l

From its forward position the feed-lever L2 does not move, except to a slight extent laterally, when the shoulder is released from the pip D 4by the starting of the slide S again, until the plunger and slide S4 again advance, when it retreats as the plunger advances, riding on the same slide. The wire having been fed along a step, all the parts will have returned to the starting-points, or the positions occupied before the forward movements of the slides S S1 .to gripe the wire; and the movements described being again and again repeated, a loop of like character will be formed at each repetition. Y

The longer loops of the corset clasp or busk are formed by the same devices, operated and operatingin the same manner as hereinbefore described, only the clamp-slide S2 is automatically given a longer movement, to measure ande gripe the greater length of wire required therefor; andthe plunger P', and slide S y also, has the required longer motion given, each in its order, by the same automatic mechanism.

This long-loop motion is given .by shifting the sockets O `O on the under side ofthe hookconnections H Llv from the rolls N N placed on the rock-shaft levers L3 L*t nearest their centers of motion in the rock-shaft K, and engaging the sockets O1 O1 on their upperr sides or heads with the rolls Nl N on the same levers, placed farthest from their-centers, therel190.265 h s by producing the longer movementsof all the connected parts, as described. At the next revolution the hook-connections androckingshaft levers L3 L4 resume the positions and relations required to produce the short loopsl again on the rolls O O. These automatic shifting movements are made under the action and control of the pattern-wheel W1, as follows: Upon the outer end of the main rockshaft K, and moving with it, is a lever or arm, L5, provided with a spring-pawl, G3,which engages with thezteeth of a ratchet-wheel, W2, placed on the stud D2in fixed relations to the pattern-wheel W1, which is operated by it. The outer edge of the inner face of the pattern-wheel W1 presents a plane surface, seplarated into sections by studs or lugs D10,`

rounded to operate on a thrusting-slide, S5, provided with a roll, O2, on its end, held in a guide, S55, perpendicularly to .the planesurfaces on the pattern-wheel W1, so as to be operated by the lugs D10. In accordance with any desired number of short loops between long ones, the teeth on the ratchet-wheel are located against or opposite, or so as to divide the space between the lugs D10, but also so tliata ratchet-tooth shall correspond with each lug. The number -of teeth in each ratchetwheel used (they may be varied so as to make sets of loops varying in the length of the se- Y ries) should correspond to the number of loops required in the set, so that one set may be run oil' after another, out of continuous wire, and cutinto lengths without wastage.

The number of lugs D10 must correspond and be spaced with the number of long loops required, or the pattern-wheel may be made entirely plane andfree from lugs, therebypermitting the production of only uniform loops; or it may be otherwise modified as to the arrangement and spacing of the lugs, so as to produce any desired pattern of looped wire.

The thrusting-slide S5 bears at the oppo- A site end from the roll O2 at right angles uponthe eccentric rod or thrusting-bar E near its center, which is provided with a jaw at each p end. One of these jaws, J embraces and rests upon af loose collar, I, on the vdriving-shaft K1, loosely, and with free side motion of its other end, a plane sliding surface being provided thereon for the' purpose, and the side bearings of the bar E presenting curved outlines to the parallel sides of the cuts made in the collar I, whereby the bar E is kept under proper control when in action. of the jaw J the thrust-bar E has a stud with roll-bearing O3, on which an outside eccentric cam, No. 6, takes, which gives it its forward motion at the proper time, the back motion being in control of a spring, R3. The other jaw J ofthe thrust-rod E embraces and rests upon the subordinate rock-shaft K2, and is provided-above and below, but upon opposite sides, with shoulders or studs D3 D4, which take on corresponding fixed projections D5 D0 from the rock-shaft K2, above and below, and on either side, when thrust forward by Just forward the eccentric-cam No.. 6. The projections on the rock-shaft K2 are so placed and spaced with'reference to the shoulders on the thrustbar that only one can be reached and operated at a time by the shoulders. While the roll of the thrust-slide S55 is bearing-on the plane, surface of the lpattern-wheel W1, the thrustbar -is drawn over by the spring R4, so that the shoulder on the under jaw will strike the under rock-shaft projection, and thus depress the two rock-shaft arms L6 L", which extend backward therefrom, and control the devices for elevating and depressing the sliderods H H, operating the plunger and clamp-slides. When the lugs D10 strike the roll O2 the bar E is thrown over, so that the shoulder on its uppcrjaw J comes in .contact with the pro. jection on the-upper side ofthe rock-shaft K2, causing these two rock-shaft arms L6 L" to be elevated, and with them the slide-rods of both the plunger and clam p-slides. At the outer ends of these two arms on rockshaft K3 are attached two carriers, V V, consisting of two plates slotted to receive pins DI D2, xed in the two respective slide/rods H H. The lower ends of these carriers are rigidly connected by a bar'A, perforated for and having vertical motion on two vertical guide-pins, a. As the two rock-shaft arms rise and fall, under the control of the eccentric rod E, the carriers V V and slide-rods H H rise and'fall, and in so d oing engage the upper or lower rolls N or N on the arms L3 L, the slots in the carriers Incanti-me permitting the requisite motions of the slide-rods. The relative numbers and positions of long and short loops may be varied by varying the tern-wheel and ratchet-wheel shown and dcscribed will cause the machine to make thev same size clasp in endless repeated lengths, which must be cut oli' every thirty loops. To make a shorterl length the ratchet-wheel which has thirty teeth mustvbe changed for one having a less number, and with a patternwheel spaced to correspond therewith will reg peat these shorter lengths in van endless form from continuous wire run through the machine, as shown in Figs. Al and 3. A similar variation, increasing the number of teeth,

&c., will make longer continuous lengths.

Ther parts already described are all operated by cams placed on a main cam-shaft, which cams operate on levers having their centers of motion in a rock-shaft, K, placed below the bed-plate of the machine. Cam No.1 is an inside cam, which operates the slide S, and Y has the requisite form to give it the motions before described through the pin and 'rockshaft arm L8. Gam No.2 is the same in character and relation to slide S1. BetweenA each rocking lever and slide a slide-rod connection with knuckle-'joint is interposed. 1 0am No. 3 is an inside cam, and operates the main rockshaft K bythe lever L3 secured thereto. lever has the upper and lower rolls which op- This erate the slide-rod of the Yplunger and feedslide S4. v

Cam No. 4 is an outside cam on the same shaft, operating a rocking-lever, L9, on main rockin g-shaft K, against which the adjustable pin or set-screw D9 of the parallel bar slide S6 rests, in order to give the motions described. Cam No. 5 is an inside cam, operating a rocking-lever, L, on the main vrock-shaft K, and through it the clamp-slide S2 and connections. Cam No."Y 3 controls the rock-shaft lever L3 and the spring-pawl fixed on the shaft by which the step-action of the pattern and ratchet wheel is obtained. Cam No. 6 is an outside cam, and operates the thrust-bar E. The plunger-stop T is a spring-stop, against the end of which the plunger is brought with its point opposite the center of each new section of wire for every short loop by the spring. The wedge-shaped piece X on the clamp-slide S2, when this slide takes its long measure for the long loop, passes under the projecting portion Xl of the spring-stop T, elevating the same high enough to allow the plunger to pass under and strike a shoulder opposite the center of the long loop wire.

The looped wire is guided out ofthe machine through the channeled guides U, which keep the manufacture flat, and prevent inju! rions leXure.

The operating ends of the slides S and S1, as shown in Figs. l, 2, and 3, are shown with the fingers or points which embrace the `sides of the loops exposed. In the machine these are hidden by the continuous tops of the slides which cover them entirely, as shown in Figs. 12 and 18, and pressthe wire loops firmly from above down upon the plate underneath, and so flatten the loops and keep them so while the new loop is being formed, and afterward pass them on complete and undis. turbcd.

We claim as our invention- 1. The slide S, provided with the comb G, arranged and operating in the manner shown and described. Y

2. The slides S and S1, provided with the combs G G, as shown and described, in combination.

3. The slide S2, provided with the clamp L, and operating in the manner and for the purposes set forth, in combination with the parallel bar P and the cam No. 4.

4.. The slide S2, clamp L, and parallel bar P, operating in the manner shown and described, and in combination.

5. The slides S and S1, arranged and operating to grasp and form the wire at the forward side of the loop, in combination with the slide S2, arranged and operating to grasp, carry, form, and release the wire at the rear side ofthe loop, as set forth.

6. The combination of the slides S and S1,

the slide S2', and gripingp-clamp L, and the plunger P', all operating in the manner and for the purposes described.

7. The slide S4, provided with and carrying the plunger Pf, and the feeding-lever L2, each operating alternately in the order and manner shown and described.

8. The combination of ratchet and pattern wheels W2 and W1, and the thrusting-slide S5, when arranged and operated to alter the throw of clamp and plunger slides S2 and S4.

9. The slide-rods H H, provided with upper and lower sockets 0 and Ol, arranged to take on the rolls N N', placed on the rockshaft arms L3 L4 at dil'erent distances from the center of motion, as shown.

10. The spring-stop T, in combination with the wedge X, so placed on the clamp-slide S2 as to take on and elevate the spring-stop when the slide S2 makes its long motion to take up a long length of wire.

11. The subordinate rock-shaft K2, provid- E ed with the arms and studsv shown and described, in combination with the slide-rods H H and the carriers V V.

OSCAR D. WOODBURY. EDWIN C. WOODBURY. SPENCER H. COLE. Witnesses:

E. A. WHITTELsEY, J. J. SIBLEY. 

